GNOME glib 2.56.1 gmarkup.c g_markup_parse_context_end_parse null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in GNOME glib 2.56.1. Affected by this vulnerability is the function g_markup_parse_context_end_parse of the file gmarkup.c. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2018-16428. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in GNOME glib 2.56.1. Affected is the function g_markup_parse_context_end_parse of the file gmarkup.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.

The bug was discovered 04/11/2018. The weakness was disclosed 09/04/2018 by Venustech with Adlab of Venustech (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2018-16428 since 09/03/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 145 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 119493 (openSUSE Security Update : glib2 (openSUSE-2018-1485)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277553 (Fedora Security Update for chromium (FEDORA-2018-f76e6d17f1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119493) and SecurityFocus (BID 105210†). The entries VDB-123553, VDB-124463 and VDB-124464 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 119493
Nessus Name: openSUSE Security Update : glib2 (openSUSE-2018-1485)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: gitlab.gnome.org

Timelineinfo

04/11/2018 🔍
09/03/2018 +144 days 🔍
09/03/2018 +0 days 🔍
09/03/2018 +0 days 🔍
09/04/2018 +0 days 🔍
09/04/2018 +0 days 🔍
12/06/2018 +93 days 🔍
12/07/2018 +1 days 🔍
05/06/2023 +1611 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: fccef3cc822af74699cca84cd202719ae61ca3b9⛔
Researcher: Venustech
Organization: Adlab of Venustech
Status: Confirmed

CVE: CVE-2018-16428 (🔍)
GCVE (CVE): GCVE-0-2018-16428
GCVE (VulDB): GCVE-100-123552
SecurityFocus: 105210 - GNOME GLib 'gmarkup.c' Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/04/2018 15:46
Updated: 05/06/2023 19:48
Changes: 09/04/2018 15:46 (75), 03/20/2020 13:21 (6), 05/06/2023 19:41 (5), 05/06/2023 19:48 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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